Two stage snowthrower



FIG. 1 is a perspective view of a two stage snowthrower showing our new design;

FIG. 2 is a front elevational view of the invention illustrated in FIG. 1;

FIG. 3 is a left elevational view of the invention illustrated in FIG. 1;

FIG. 4 is a right elevational view of the invention illustrated in FIG. 1;

FIG. 5 is a back elevational view of the invention illustrated in FIG. 1; and,

FIG. 6 is a top plan view of the invention illustrated in FIG. 1.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a two stage snowthrower, as shown and described. 